Baldrick314 wrote:It's hard to state a rule of thumb because every rifle really is it's own beast but it shouldn't need too much adjustment. I'd think up to a grain may so yeah .1 adjustments would be a good idea
Yeah, hopefully you could just get away with some tuning and not a full load development from scratch.
e.g. Ruger do their Hawkeye in a "standard" with a 22" barrel and their "compact" with a 16.5" barrel but otherwise everything with the two rifles is the same.
For something like that, say you had a load of 45gr worked up for the 22" barrel, and bought a 16.5" as well, I'd do a batch of loads something like 44.6, 44.8, 45, 45.2 and 45.4 for the 16.5".
Hopefully one's about bang on and you can skip the whole min to max stage and refinement from there.
No guarantees though.